Hyperledger-Super Ledger study report
first, what is blockchain.
The fundamentals of the blockchain, the basic components include:
Trade: Changes in the state of the ledger;
Block: Record transactions and status, is a confirmation of the status of the current ledger;
Chains: Logging of state changes.
When a blockchain is used as a state machine, each transaction is an attempt to change the state, and each time a block is generated, the participant
Password. Password: # Number of retries for CouchDB errors maxretries:3# Number of retries for CouchDB errors during peer startup Maxretriesonstartup:10# CouchDB Request Timeout (unit:duration, e.g. 20s) requesttimeout:35s # Limit on the number of Reco RDS to return per query Querylimit:10000 COUCHDB is hosted in a Docker container by using a Docker compose script that uses Hyperledger fabric to set COUCHDB username and password capabilities thr
A Before installing composer, make sure that you have PHP installed on your machine and that you can execute commands through PHP. Use PHP–V test of course to use PHP directly also need to determine that the PHP command has been set in the global command, otherwise you need to add path/usr/local/php/bin/php–v (this is my installation path). There are some requirements for installing composer in Chinese netw
At first I was using the up5.6 version of the PHP command installation composerLater when using composer, the command line was found to prompt PHP version too lowSo I downloaded the wamp and reinstalled the composer with version 7.1 PHP because the PHP-ML requirement must be version 7.1There are some problems with the installation, that is, the installation is unsuccessful, and there is no folder that appea
This post consists of: http://xinpure.com/composer-error-when-run-composer-update/ErrorMany times even the most commonly used commands will have some weird errors, unpredictable ...Input:composer updateOutput:PHP Fatal error: Call to undefined method Fxp\Composer\AssetPlugin\Package\Version\VersionParser::parseLinks() in /root/.
Hyperledger Fabric Super Ledger
The basic principles of the project agreement are: attaching importance to the modular design, including the trade, contract, consistency, identity, storage and other technical scenarios; Code readability ensures that new features and modules can be easily added and extended, evolving paths that evolve and evolve new projects as needs go deeper and more scenarios are applied. Catalogue
as a standalone database process with peer, so there are additional considerations for setup, management, and operation. We can consider starting with the default embedded Leveldb, which can be transferred to COUCHDB if additional complex rich queries are required. Modeling Chaincode Asset data as JSON is a good practice so that we can execute the complex rich queries we need in the future. Two. Enable Couchdb This article uses the relevant components and resources in the Fabric-samples in the
As the question. I don't know how Composer is managed. If you use Composer as a management tool in the development environment, do you still need to use Composer after you write the code and put it in the production environment (for example, the virtual host I bought? If not, for example, virtual space cannot be installed. I don't know how
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Check whether your php can be started normally using the command line.
It is not recommended to use a GUI to install the program. we recommend that you use the command line to install the program.
Reference: Packagist/
Composer installation1. Download a Composer.exe package installation first (https://getcomposer.org/download/)2. Download the executable exe file (http://jingyan.baidu.com/article/4f34706ed04013e386b56d72.html)3. After installation we can enter CMD, after the black window we can enter composer to see if there isThe installation succeeds when the following conditions occur:This time although the installation
Installation Error[Composer\downloader\transportexception]Invalid credentials for ' https://packagist.phpcomposer.com/p/provider-2016%24ae19026fd0d5a3d5733e5a46202305c96ff2ae1ccd7988bb88c5fa2a7e490f7d.json ', aborting.Cause: It was later discovered that there might be a problem with a package source in the composer file, or there might be no update composer
Build a route using Composer to build your own PHP framework and composer to build a route
In the previous article, we have created an empty Composer project. This article describes how to build a route.
The prestigious CodeIgniter framework is an entry-level framework for PHP development by many people. It is also a framework for me to learn how to build a websi
1.composer Install
The install command reads the Composer.json file from the current directory, processes the dependencies, and installs them into the vendor directory.
PHP Composer.phar Install
If there is a Composer.lock file in the current directory, it will read the dependent version from this file instead of relying on the Composer.json file. This ensures that each user of the library gets the same dependent version.
If there is no Composer.lo
About the use of Composer, Composer
I haven't written a blog for about four years. Today I am a little inspired. Let's write it.
The year 2018 is really not calm. Two of our loved ones left us one after another. They felt sorry, sad, and sad throughout the family. Not to mention, turn back to the subject.
In 2013, I decided to return to the Crown because of my family factors and my judgment on my developmen
Images required to recompile the Docker development environment after Hyperledger/fabric new user
Author: Chen Zhao Lin email:chenlin2@ms9.hinet.net
Hyperledger does not belong to the public Chain, such as Bitcoin, he is a private chain that requires user review and authentication to join a blockchain transaction, which uses a CA (Certificate authority) for public key, private key, The issuance of digital
Title. I don't know how composer manages it. If you use composer as a management tool in your development environment, do I have to use composer when the code is written and placed in a production environment (such as a virtual host I bought)? If not (for example, virtual space cannot be installed)
This issue has been closed due to: off
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Titl
About composer--long time no hands ... , composer hands-on.
June the first "blood"
Reading, found like starting from the end of reading, and then the PHP classic example, the last chapter is pear content, know about a check, end, outdated, is completely composer, then learn a bit
One, what?
Bottom line: rely on management tools;
Explanation: Convenient for you
This is the Chaincode for developers chapter in the official document of Hyperledger Fabric V1.0.The first translation, the wrong place also asked netizens to point out that we learn together progress.Original address (http://hyperledger-fabric.readthedocs.io/en/latest/chaincode4ade.html) chain code is what
Chaincode is a program written with go, which eventually implements a defined interface in other prog
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Determine if your PHP can be started properly using the command line.
The GUI installer is not recommended, and it is recommended to install it with the command line.
Reference: Packagist/composer China Full-volume image-How to install Composer
php -r "readfile('https://getcomposer.org/installer');" > composer-setup.phpphp
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